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3 years ago

Most surface wind systems are named...?

Physics

2 answers:

NemiM [27]3 years ago

7 0

It's called trade winds.

Trava [24]3 years ago

4 0

I believe the answer is trade winds give me brainliest plz

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What is the mass of a ball that is moving at 25 m/s and has 93.75 kg*m/s of momentum ?

melisa1 [442]

Answer:

m = 3.75 [kg]

Explanation:

We must remember that momentum is defined as the product of mass by Velocity, therefore it can be represented by means of the following equation.

$P=m*v$

where:

P = momentum = 93.75 [kg*m/s]

m = mass [kg]

v = velocity = 25 [m/s]

Now replacing, we can clear the mass:

$P=m*v\\m=P/v\\m=93.75/25\\m=3.75 [kg]$

7 0

3 years ago

A 64.1 kg runner has a speed of 3.10 m/s at one instant during a long-distance event.(a) What is the runner's kinetic energy at

Liono4ka [1.6K]

Answer:

(a) the runner's kinetic energy at the given instant is 308 J

(b) the kinetic energy increased by a factor of 4.

Explanation:

Given;

mass of the runner, m = 64.1 kg

speed of the runner, u = 3.10 m/s

(a) the kinetic energy of the runner at this instant is calculated as;

$K.E_i = \frac{1}{2} mu^2\\\\K.E_i = \frac{1}{2} \times 64.1 \times 3.1^2\\\\K.E_i = 308 \ J$

(b) when the runner doubles his speed, his final kinetic energy is calculated as;

$K.E_f = \frac{1}{2} mu_f^2\\\\K.E_f = \frac{1}{2} m(2u)^2\\\\K.E_f = \frac{1}{2} \times 64.1 \ \times (2\times 3.1)^2\\\\K.E_f = 1232 \ J$

the change in the kinetic energy is calculated as;

$\frac{K.E_f}{K.E_i} = \frac{1232}{308} =4$

Thus, the kinetic energy increased by a factor of 4.

4 0

3 years ago

What is the cooling power P? Recall that the rate at which energy is removed, also called the cooling power, was described earli

gayaneshka [121]

Answer:

36.667

Explanation:

(2.2*10^4)/(10*60)

3 0

3 years ago

What nonliving materials are important to living things?

Pavel [41]

<span>Nonliving things also have unlimited duration of existence. While living things die and decompose, nonliving things such as rocks, mountains, air and water have existed for millions of years. They may grow, but they do so only by accretion, which is the process of growth by accumulating added layers of matter.</span>

3 0

3 years ago

Read 2 more answers

You throw a ball upward from a window at a speed of 2.0 m/s. the ball accelerates at 9.8 m/s2. how fast is it moving when it hit

Nastasia [14]

At the point where the ball stops it has speed of 0 m/s. When it continues to fall in every meter it gets 9.8 m/s so you just put this :
9.8 m/s2 x 2.5 m = 24.5 m/s

6 0

4 years ago